On Wed 31-10-18 12:15:50, Andrew Morton wrote: > On Wed, 31 Oct 2018 13:58:40 +0100 Michal Hocko <mhocko@xxxxxxxxxx> wrote: > > > From: Michal Hocko <mhocko@xxxxxxxx> > > > > We have received a bug report that unbinding a large pmem (>1TB) > > can result in a soft lockup: > > > > ... > > > > It has been reported on an older (4.12) kernel but the current upstream > > code doesn't cond_resched in the hot remove code at all and the given > > range to remove might be really large. Fix the issue by calling cond_resched > > once per memory section. > > > > Worthy of a cc:stable, I suggest? It is simple enough and we will surely have it in 4.12 based SLES kernels. So I do not really mind cc: stable. -- Michal Hocko SUSE Labs
